Home / 1,100,071.13-1,518,185.63-647,449.61

Finding the Fourth Proportional to 1,100,071.13, 1,518,185.63 and 647,449.61

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Solution

The fourth proportional to 1,100,071.13, 1,518,185.63 and 647,449.61 is: 893,531.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,071.13 : 1,518,185.63 = 647,449.61 : x
  2. Step 2: Convert to fraction form
    1,100,071.13/1,518,185.63 = 647,449.61/x
  3. Step 3: Cross multiply
    1,100,071.13x = 1,518,185.63 × 647,449.61
  4. Step 4: Simplify right side
    1,100,071.13x = 982,948,688,078.80
  5. Step 5: Solve for x
    x = 982,948,688,078.80/1,100,071.13
  6. Step 6: Final answer
    x = 893,531.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.